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On 12 Jul 2002, at 11:52, Wade Shen wrote: > My '72 fastback has a mysterious part that I need help identifying. > > My bentley's doesn't describe or even show what this unit is. It's a > round diaphram with a rod protruding towards the front of the car, It's a throttle damper. It's job is to keep the throttle from closing too quickly which might lead to unburned gas fumes coming out the tailpipe. It's an emission control device. I thought it was mentioned somewhere in the bentley; there's an adjustment procedure for it. > This unit seems to fall out of the connecting bracket frequently. What > kinds of effects might that cause? Is this one missing the locknut that would hold it in position? They run fine without them, although there is probably a minor increase in emissions. - Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/